6 * Linear Technology LTC4260
14 http://cds.linear.com/docs/en/datasheet/4260fc.pdf
16 Author: Guenter Roeck <linux@roeck-us.net>
22 The LTC4260 Hot Swap controller allows a board to be safely inserted
23 and removed from a live backplane.
29 This driver does not probe for LTC4260 devices, since there is no register
30 which can be safely used to identify the chip. You will have to instantiate
31 the devices explicitly.
33 Example: the following will load the driver for an LTC4260 at address 0x10
37 $ echo ltc4260 0x10 > /sys/bus/i2c/devices/i2c-1/new_device
43 Voltage readings provided by this driver are reported as obtained from the ADC
44 registers. If a set of voltage divider resistors is installed, calculate the
45 real voltage by multiplying the reported value with (R1+R2)/R2, where R1 is the
46 value of the divider resistor against the measured voltage and R2 is the value
47 of the divider resistor against Ground.
49 Current reading provided by this driver is reported as obtained from the ADC
50 Current Sense register. The reported value assumes that a 1 mOhm sense resistor
51 is installed. If a different sense resistor is installed, calculate the real
52 current by dividing the reported value by the sense resistor value in mOhm.
54 ======================= =======================
55 in1_input SOURCE voltage (mV)
56 in1_min_alarm Undervoltage alarm
57 in1_max_alarm Overvoltage alarm
59 in2_input ADIN voltage (mV)
60 in2_alarm Power bad alarm
62 curr1_input SENSE current (mA)
63 curr1_alarm SENSE overcurrent alarm
64 ======================= =======================